72040000

素因数分解:

$2^6\times 5^4\times {\mathrm{1801}}^1$

素因数の和:1833

約数の個数: 70

約数和(自身を含む): 178734974

約数和(自身を除く): 106694974

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 800, 1000, 1250, 1600, 1801, 2000, 2500, 3602, 4000, 5000, 7204, 8000, 9005, 10000, 14408, 18010, 20000, 28816, 36020, 40000, 45025, 57632, 72040, 90050, 115264, 144080, 180100, 225125, 288160, 360200, 450250, 576320, 720400, 900500, 1125625, 1440800, 1801000, 2251250, 2881600, 3602000, 4502500, 7204000, 9005000, 14408000, 18010000, 36020000, 72040000]

約数ペア:

[(1, 72040000), (2, 36020000), (4, 18010000), (5, 14408000), (8, 9005000), (10, 7204000), (16, 4502500), (20, 3602000), (25, 2881600), (32, 2251250), (40, 1801000), (50, 1440800), (64, 1125625), (80, 900500), (100, 720400), (125, 576320), (160, 450250), (200, 360200), (250, 288160), (320, 225125), (400, 180100), (500, 144080), (625, 115264), (800, 90050), (1000, 72040), (1250, 57632), (1600, 45025), (1801, 40000), (2000, 36020), (2500, 28816), (3602, 20000), (4000, 18010), (5000, 14408), (7204, 10000), (8000, 9005)]